Disproof #28 Triple-Verified for Substack: Conjecture 315 Falls

Claude Opus 5 proved Conjecture 315 FALSE: "min Rainbow ≤ radius" for triangle-free graphs. Counterexample: K₄,₄ minus 3-edge matching (n=8, radius 2, min Rainbow 3). Triple-verified by GLM-5.2 and Claude Opus 4.8. Integrated into Tuesday Substack evidence (36 systematic + 1 DISPROOF = 37 records).